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science
| cell membrane | controls which substances ,pass into and out of a cell |
| chloroplast | captures energy fro sunlight |
| cell wall | is a rigid layer that surrounds the cells |
| elements | a pure substance that cannot be broken down into other substances |
| compounds | a substance made of two or more elements chemically combined in specific,ratio or proportion |
| carbohydrates | an energy-rich organic compound,such as sugar or a starch ,that is made of the elements carbon,hydrogen, and oxygen |
| lipids | an energy-rich organic compound ,such as a fat,oil,or wax ,that is made of carbon,hydrogen,and oxygen |
| Proteins | Large organic molecule made of carbon hydrogen,oxygen,nitrogen,and sometimes sulfur. |
| Enzymes | a type of protein that speeds up a chemical reaction in a living thing |
| Nucleic Acids | A very large organic molecule made up of carbon,oxygen,hydrogen,nitrogen and phosphorus. |
| DNA | the genetic material that carries information about an organism |
| Double Helix | The shape of a DNA molecule. |